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Pregnancy

First Trimester Week by Week: What's Happening to Your Body and Baby

Week 4: implantation. Week 6: heartbeat. Week 8: all organs forming. Week 12: nausea peaks then fades. Your body and baby week by week.

By TeachToddler Editorial Team · · Pregnancy

What This Guide Covers

Week 4: implantation. Week 6: heartbeat. Week 8: all organs forming. Week 12: nausea peaks then fades. Your body and baby week by week.

  • Read our evidence-based guide on first trimester.
  • Read our evidence-based guide on first trimester symptoms.
  • Read our evidence-based guide on what to expect first trimester.
  • Read our evidence-based guide on pregnancy first trimester.

About TeachToddler

TeachToddler.com provides evidence-based parenting guides reviewed by pediatric specialists. Our pregnancy content is researched, fact-checked, and updated regularly to give parents the most accurate information available.

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